Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Big news from TikTok: ...

We’ve all seen fitness routines that promise to reshape your body, boost your energy, or improve your heart health, but what if something as basic as sitting down on the floor and standing back up ...

Longevity isn't just about how long you live — it's also about staying healthy for as much of that time as possible. The "sit to stand" test can be a good way to figure out how healthy you are, and it ...